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Selecting a video card

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by M Holland

Many people who build their own computers do so for several reasons. Mainly, they do so because they find it interesting, fun and challenging. Another major advantage, however, is the ability to customize your PC to your specific needs.

A lot of people who build their own computers do specifically with games in mind. The aim of the new machine is important to know before you start out, because it will directly affect the components you choose for the new system. For gaming computers, the most important is the video card.

Choose the right card is important, and can be a difficult decision. Although there are only two companies that produce graphics processing units (GPU), there are literally thousands of video cards on the market. They vary greatly in price and functionality, so the challenge is to get the best performance without losing money.

Why is the video card is important

Most computer games today rely on detailed 3D graphics, great textures, effects heavy, and fast action. All these features are very processor-intensive and can slow the fastest system. This is where the GPU

A dedicated video card is able to unload the processing of 3D effects and rendering to the GPU, a piece of dedicated hardware optimized specifically for these types of statements. The GPU is much more effective than a central processing unit (CPU) to calculate the geometry and the storage / loading textures. This makes gaming performance much better and faster, as it also frees CPU cycles to work on other things.

Connecting your video card

For nearly two decades, it was the question of what type of connector to connect to select the card to your motherboard. In the 90′s and early 2000′s, motherboards often feature two types of expansion slot connectors, AGP and PCI. AGP was the preferred connector for graphics, motherboards, and almost exclusively offered one AGP slot.

During the mid-2000 was a time, the PCI-E was developed, which offered four times the bandwidth of the AGP bus. At this point, the standard PCI video cards have been superseded, and the question became, “the type of connector your job board, AGP or PCI-e?”

At the time of writing, new developments have led to the PCI-E 2.0, which remains the undisputed standard for video cards. AGP is essentially obsolete, and although the board are still PCI slots, they exist only for connecting legacy devices

GPU.

ATI or nVidia

As mentioned above, there are only two companies that produce great video card GPU: ATI and nVidia. Both companies, however, do not sell video cards directly. They sell and GPU architecture to third parties that manufacture video cards, then sell to consumers. So basically, you not only choose a company GPU, but also a company that builds video cards. You should research specific video card manufacturers for yourself, but some manufacturers are remarkable as EVGA, XFX and Gigabyte.

With the GPU, there really is no clear corporate top. There are many who swear by nVidia, and others who claim they only use ATI GPU. Every business has its ups and downs, but offers them in terms of quality and features are almost always very similar. Search widely and each GPU to determine which offer specific functionality to meet your needs. If one of them seems sufficient to make your decision based on price.

When comparing video cards, remember to consider the generation of GPU. GPUs are released into the generations about once, sometimes twice a year, and are usually numbered. Generally, a model number of generation will be something like “GS 500 Series” models with individual card looking something like, “GS 560″ and “GS 570″. More almost universally represent a new and more advanced GPU, but each company follows its own naming scheme, so make sure you understand the GPU naming scheme before drawing your conclusions.

SLI and Crossfire

To run SLI / Crossfire, you need two identical video cards that support these modes, and a motherboard that supports them. SLI / Crossfire can be a great way to improve gaming performance but also increases the cost of the system substantially, so you’ll have to decide whether the performance gains are worth it for you.

About the auteurM. Holland

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Posted: August 15th, 2011 under video card.
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